Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual música de David Essex passou 2 semanas no topo das paradas?
 ###Tabelas: CREATE TABLE 1940 (1940_id AUTO_INCREMENT PRIMARY KEY, Title VARCHAR, Series VARCHAR, Director VARCHAR, Production Number VARCHAR, Release date VARCHAR) CREATE TABLE winning_head_of_the_river_championship_events (winning_head_of_the_river_championship_events_id AUTO_INCREMENT PRIMARY KEY, Crew INT, Open 1st VIII VARCHAR, Open 2nd VIII VARCHAR, Open 3rd VIII VARCHAR, U16 1st VIII VARCHAR, U16 2nd VIII VARCHAR, U16 3rd VIII VARCHAR, U15 1st Quad VARCHAR, U15 2nd Quad VARCHAR, U15 3rd Quad VARCHAR, U15 4th Quad VARCHAR, U15 5th Quad VARCHAR, U15 6th Quad VARCHAR) CREATE TABLE deployments (deployments_id AUTO_INCREMENT PRIMARY KEY, from VARCHAR, aircraft VARCHAR, carrier VARCHAR, air wing VARCHAR, tail code VARCHAR, area VARCHAR) CREATE TABLE  (_id AUTO_INCREMENT PRIMARY KEY, Volume:Issue VARCHAR, Issue Date(s) VARCHAR, Weeks on Top INT, Song VARCHAR, Artist VARCHAR) CREATE TABLE 2005 (2005_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Visiting Team VARCHAR, Final Score VARCHAR, Host Team VARCHAR, Stadium VARCHAR)  
SELECT Song FROM  WHERE Weeks on Top = 2 AND Artist = david essex